CN213093164U - High-reliability surge current suppression switch - Google Patents

Abstract

The utility model discloses a high reliability surge current suppression switch relates to electronic component technical field. Including the switch box, switch box both sides are equipped with zero line terminal, live wire terminal, ground wire wiring and three hole sockets, zero line terminal with the zero line of three hole sockets links to each other, the ground wire terminal with the ground wire of three hole sockets links to each other, and switch box middle part is equipped with switch blade copper sheet, front end contact copper sheet and rear end contact copper sheet in proper order, and the one end of switch blade copper sheet rotates with the copper post that the live wire terminal was drawn forth and is connected, and the other end of switch blade copper sheet is equipped with insulating handle, and front end contact copper sheet is higher than rear end contact copper sheet, and it has high-power thermistor to concatenate between front end contact copper sheet and the rear end contact copper sheet, and rear end contact copper sheet. The beneficial effects of the utility model are that, the start is in the twinkling of an eye, and high-power thermistor absorbs surge current, and then thermistor has been fallen by the short circuit, has improved this surge suppression switch's stability greatly.

Description

High-reliability surge current suppression switch

Technical Field

The utility model relates to an electronic component technical field specifically is a high reliability surge current suppression switch.

Background

Because the capacitive components of the power supply circuit of the voltage-stabilized power supply and the desktop computer host are more, the approximate impedance is zero at the moment of starting up, and a large surge current is generated, so that the damage of equipment can be caused, and particularly under the condition of frequent starting, the invention of the surge suppression switch is necessary.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to do not change the zero line of 220VAC commercial power, the connection of ground wire, provide a high reliability surge suppression switch to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high reliability surge current restraines switch, includes the switch box, switch box left side is equipped with zero line terminal, live wire terminal and ground wire terminal, and switch box right side is equipped with three hole sockets, zero line terminal with the zero line of three hole sockets links to each other, ground wire terminal with the ground wire of three hole sockets links to each other, switch box middle part is equipped with switch blade copper sheet, front end contact copper sheet and rear end contact copper sheet in proper order, and the copper post that the one end of switch blade copper sheet and live wire terminal were drawn forth rotates to be connected, and the other end of switch blade copper sheet is equipped with insulating handle, and front end contact copper sheet is higher than rear end contact copper sheet, and switch blade copper sheet and front end contact copper sheet and rear end contact copper sheet link to each other, and high-power thermistor has been concatenated between front end contact copper sheet and the rear end contact copper sheet.

As the utility model discloses an optimal technical scheme still includes the safety protection baffle, and the quantity of safety protection baffle is 2, and two safety protection baffle parallel arrangement are in the switch box, and copper post, front end contact copper sheet and rear end contact copper sheet that live wire terminal, live wire terminal were drawn forth are located between two safety protection baffles.

As the preferred technical scheme of the utility model, the material of switch box is the polypropylene PP material of V0 level.

As the utility model discloses an optimal technical scheme, the switch box is uncovered cuboid type, and long: width: and (3) high-to-120 mm: and (5) 60 mm: and 80 mm.

As the preferred technical scheme of the utility model, the high-power thermistor is NTC 2D-30.

The utility model discloses a technological effect and advantage: at the moment of starting up, the high-power thermistor absorbs surge current, and then the thermistor is short-circuited, so that the reliability and the stability of the surge suppression switch are greatly improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the live wire passage of the present invention.

In the figure: the device comprises a zero line terminal 1, a live line terminal 2, a ground line terminal 3, a knife blade copper sheet 4, an insulating handle 5, a contact copper sheet 6 at the front end, a contact copper sheet 7 at the rear end, a high-power thermistor 8, a switch box 9, a three-hole socket 10, a safety protection baffle 11 and a copper column 12.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a high reliability surge suppression switch as shown in fig. 1-2 designs an external dimension earlier and is 120 60 80 millimeters take zero line terminal 1, live wire terminal 2, ground wire terminal 3, three hole sockets 10, the switch box 9 of live wire baffle. The zero line binding post 1 and the ground wire binding post 3 are respectively connected with a zero line and a ground wire of the three-hole socket 10, and the switch blade copper sheet 4 with the insulating handle 5 is fixed with a copper column 12 led out from the live wire binding post 2 and can rotate; the front end contact copper sheet 6 and the rear end contact copper sheet 7 are fixed at the bottom of a switch box 9 according to the positions shown in the drawing (mounting screws do not penetrate through the bottom of the switch box to ensure safe insulation), the front end contact copper sheet 6 is about 3 cm higher than the rear end contact copper sheet 7, and a high-power thermistor (typically NTC2D-30, is connected between the front end contact copper sheet 6 and the rear end contact copper sheet 7 in series, wherein two lead wires of the NTC2D-30 are forked and then are respectively and firmly welded on the front end contact copper sheet 6 and the rear end contact copper sheet 7), and then are connected with a live wire of a three-hole socket 10.

The utility model discloses the theory of operation: the main body part of the protection device is connected in series with a live wire of an incoming line power supply, and the incoming and outgoing zero lines and the ground line are respectively and directly communicated. The operation process is as follows: the three wiring terminals of the incoming line are fixedly connected with commercial power for a long time, a stabilized voltage power supply and a power plug of a desktop computer host are inserted into a socket of the switch, a knife switch is slowly pushed down, and a knife switch copper sheet is firstly connected with a front end contact copper sheet; at the moment, a live wire, a high-power thermistor, a stabilized voltage power supply or a desktop computer host and a zero line form a loop, and the high-power thermistor plays a role in inhibiting surge current and inhibits the impact of the surge current on equipment at the moment of starting; in the subsequent process that the knife switch is pushed down slowly, the knife switch starts to be connected with the rear-end contact copper sheet, power is normally supplied to equipment, meanwhile, the high-power thermistor is also short-circuited, the service life of the high-power thermistor is prolonged, and the reliability and the stability of the surge suppression current switch are also improved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

It should be noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. A high reliability surge current suppression switch, includes switch box (9), its characterized in that: switch box (9) left side is equipped with zero line terminal (1), live wire terminal (2) and ground wire terminal (3), and switch box (9) right side is equipped with three hole sockets (10), zero line terminal (1) with the zero line of three hole sockets (10) links to each other, ground wire terminal (3) with the ground wire of three hole sockets (10) links to each other, switch box (9) middle part is equipped with plug-in strip copper sheet (4) in proper order, front end contact copper sheet (6) and rear end contact copper sheet (7), and the copper post (12) that the one end of plug-in strip copper sheet (4) and live wire terminal (2) were drawn forth rotates and is connected, and the other end of plug-in strip copper sheet (4) is equipped with insulated handle (5), and front end contact copper sheet (6) is higher than rear end contact copper sheet (7), and plug-in strip copper sheet (4) can contact copper sheet (6) and rear end contact copper sheet (7), a high-power thermistor (8) is connected in series between the front end contact copper sheet (6) and the rear end contact copper sheet (7), and the rear end contact copper sheet (7) is connected with a live wire of the three-hole socket (10).

2. A high reliability inrush current suppression switch as claimed in claim 1, wherein: still include safety protection baffle (11), the quantity of safety protection baffle (11) is 2, and two safety protection baffle (11) parallel arrangement are in switch box (9), and copper post (12), front end contact copper sheet (6) and rear end contact copper sheet (7) that live wire terminal (2), live wire terminal (2) were drawn forth are located between two safety protection baffle (11).

3. A high reliability inrush current suppression switch as claimed in claim 1, wherein: the switch box (9) is made of a V0-grade polypropylene PP material.

4. A high reliability inrush current suppression switch as claimed in claim 1, wherein: the switch box (9) is of a coverless cuboid shape and is long: width: and (3) high-to-120 mm: and (5) 60 mm: and 80 mm.

5. A high reliability inrush current suppression switch as claimed in claim 1, wherein: the high-power thermistor (8) is NTC 2D-30.

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